Superoxide release by confluent endothelial cells, an electron spin resonance (ESR) study M.-A. Barbacanne, E. Margeat, J.-F. Arnal, F. Nepveu and J.-P. Souchard J. Chim. Phys., 96 1 (1999) 85-92 DOI: 10.1051/jcp:1999114